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Samsung SGH-T155G vs Samsung R220

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Samsung SGH-T155G Remove phone

Posted: 16 Nov 2009
Market Status: Released
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Samsung R220 Remove phone

Posted: 06 Feb 2012
Market Status: Released

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Design
Device typeBasic phoneBasic phone 
Dimensions3.57 x 1.72 x 0.78 inches (91 x 44 x 20 mm)3.86 x 2.01 x 0.77 inches (98 x 51 x 20 mm) 
Weight2.86 oz (81 g)
the average is 4.8 oz (138 g)
2.86 oz (81 g)
the average is 4.8 oz (138 g)
 
Display
Physical size1.5 inches2.2 inches 
Resolution128 x 128 pixels240 x 320 pixels 
Pixel density

Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.

119 ppi182 ppi 
Technology

Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.

CSTNTFT 
Screen-to-body ratio18.81 %29.94 % 
Colors65 53665 536 
Additional display

Additional display - Shows specs of the phone's additional display

 CSTN 
Resolution

Resolution - Refers to the width and the length od the additional display

 128 x 128 pixels 
Physical Size 1.3 inches 
Colors

Colors - Shows the number of colors that the additional display supports

 65 536 
Camera
Front-facing camera 1.3 megapixels 
Hardware
System memory

System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.

 512 MB RAM 
Built-in storage0.003 GB1 GB 
Battery
Talk time7.00 hours
the average is 11 h (675 min)
3.10 hours
the average is 11 h (675 min)
 
Stand-by time14.6 days (350 hours)
the average is 20 days (477 h)
25.0 days (600 hours)
the average is 20 days (477 h)
 
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Technology
CDMA

CDMA - Code Division Multiple Access. A technique of multiplexing, also called spread spectrum, in which analog signals are converted into digital form for transmission. For each communication channel, the signals are encoded in a sequence known to the transmitter and the receiver for that channel. The foremost application is digital cellular phone technology from QUALCOMM that operates in the 800MHz band and 1.9GHz PCS band. CDMA phones are noted for their excellent call quality and long battery life.

 800, 1900 MHz 
GSM850, 1900 MHz  
DataGPRS  
Other features
NotificationsService lights, Polyphonic ringtones (40 voices), Vibration, Silent mode, SpeakerphoneSpeakerphone 
Hearing aid compatibilityM3, T3M4, T4 
Other Voice dialing 

To see the full specifications with in-depth details click here.

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